Tools & Wizards About Us
library.amnh.org screenshot

Report Summary

  • 24

    Performance

    Renders faster than
    43% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

library.amnh.org

Gottesman Research Library and Learning Center | AMNH

Page Load Speed

2.7 sec in total

First Response

37 ms

Resources Loaded

2 sec

Page Rendered

631 ms

library.amnh.org screenshot

About Website

Click here to check amazing Library AMNH content for United States. Otherwise, check out these important facts you probably never knew about library.amnh.org

Welcome to the David S. and Ruth L. Gottesman Research Library and Learning Center, the Museum’s repository for published scientific literature and archives.

Visit library.amnh.org

Key Findings

We analyzed Library.amnh.org page load time and found that the first response time was 37 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

library.amnh.org performance score

24

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

59/100

10%

LCP (Largest Contentful Paint)

Value13.1 s

0/100

25%

SI (Speed Index)

Value9.2 s

13/100

10%

TBT (Total Blocking Time)

Value2,240 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value18.4 s

3/100

10%

Network Requests Diagram

library.amnh.org

37 ms

research-library

153 ms

gtm.js

480 ms

488794743153594d558c30db374f6f69_1712248175_all.css

35 ms

lazysizes_with_bg.min.js

71 ms

Our browser made a total of 75 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Library.amnh.org, 44% (33 requests) were made to Amnh.org and 8% (6 requests) were made to Consentag.eu. The less responsive or slowest element that took the longest time to load (480 ms) relates to the external source Googletagmanager.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 350.0 kB (38%)

Content Size

925.4 kB

After Optimization

575.5 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Library.amnh.org main page is 925.4 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 522.9 kB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 345.6 kB

  • Original 379.3 kB
  • After minification 174.4 kB
  • After compression 33.7 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 204.9 kB, which is 54% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 345.6 kB or 91% of the original size.

Image Optimization

-0%

Potential reduce by 1 B

  • Original 522.9 kB
  • After minification 522.9 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Library AMNH images are well optimized though.

JavaScript Optimization

-19%

Potential reduce by 4.3 kB

  • Original 23.2 kB
  • After minification 23.2 kB
  • After compression 18.9 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 4.3 kB or 19% of the original size.

Requests Breakdown

Number of requests can be reduced by 46 (82%)

Requests Now

56

After Optimization

10

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Library AMNH. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

library.amnh.org

library.amnh.org

37 ms

research-library

research-library

153 ms

gtm.js

gtm.js

480 ms

488794743153594d558c30db374f6f69_1712248175_all.css

488794743153594d558c30db374f6f69_1712248175_all.css

35 ms

lazysizes_with_bg.min.js

lazysizes_with_bg.min.js

71 ms

69faf49f49c795c18b4527e4a6e0fd15.js

69faf49f49c795c18b4527e4a6e0fd15.js

20 ms

email-decode.min.js

email-decode.min.js

26 ms

edacb30457a460d825a6b1ba77a772a0_1712248175.js

edacb30457a460d825a6b1ba77a772a0_1712248175.js

63 ms

acca09b4fe2c4a65c2b204c15cb372a3_1689180647.js

acca09b4fe2c4a65c2b204c15cb372a3_1689180647.js

478 ms

ls.respimg.min.js

ls.respimg.min.js

430 ms

amnh-logo-white.svg

amnh-logo-white.svg

162 ms

search_lime.svg

search_lime.svg

161 ms

search_white.svg

search_white.svg

160 ms

tree_blue.svg

tree_blue.svg

159 ms

share_blue.svg

share_blue.svg

160 ms

share_black.svg

share_black.svg

224 ms

google-classroom_white.svg

google-classroom_white.svg

223 ms

circle_blue.svg

circle_blue.svg

225 ms

plus_blue.svg

plus_blue.svg

226 ms

plus_black.svg

plus_black.svg

225 ms

search_blue.svg

search_blue.svg

222 ms

search_black.svg

search_black.svg

228 ms

AMNHSans-400.woff

AMNHSans-400.woff

186 ms

AMNHSans-500.woff

AMNHSans-500.woff

191 ms

AMNHSans-300.woff

AMNHSans-300.woff

185 ms

AMNHSans-600.woff

AMNHSans-600.woff

188 ms

AMNHSans-700.woff

AMNHSans-700.woff

187 ms

AMNHSerif-300.woff

AMNHSerif-300.woff

189 ms

AMNHSerif-400.woff

AMNHSerif-400.woff

189 ms

AMNHSerif-500.woff

AMNHSerif-500.woff

352 ms

AMNHSerif-600.woff

AMNHSerif-600.woff

354 ms

AMNHSerif-700.woff

AMNHSerif-700.woff

354 ms

fa-brands-400.ttf

fa-brands-400.ttf

355 ms

carat-left_black.svg

carat-left_black.svg

117 ms

carat-left_blue.svg

carat-left_blue.svg

114 ms

gottesman-reading-room-visitors-ak_230414_5559_fullbleed_2880.jpg

gottesman-reading-room-visitors-ak_230414_5559_fullbleed_2880.jpg

87 ms

js

js

72 ms

destination

destination

219 ms

destination

destination

266 ms

fbevents.js

fbevents.js

348 ms

consenTag.js

consenTag.js

420 ms

c7e3b9a0-b847-013a-5093-0cc47a8ffaac

c7e3b9a0-b847-013a-5093-0cc47a8ffaac

347 ms

up_loader.1.1.0.js

up_loader.1.1.0.js

342 ms

356586

356586

341 ms

events.js

events.js

338 ms

consenTag.js

consenTag.js

407 ms

activityi;src=9432320;type=visit;cat=amnh-0;ord=1;num=4386012720014;npa=0;auiddc=1726688729.1716083111;pscdl=noapi;frm=0;gtm=45fe45f0v9177258950z86342798za201;gcd=13l3l3l3l1;dma=0;epver=2;~oref=https%3A%2F%2Fwww.amnh.org%2Fresearch%2Fresearch-library

activityi;src=9432320;type=visit;cat=amnh-0;ord=1;num=4386012720014;npa=0;auiddc=1726688729.1716083111;pscdl=noapi;frm=0;gtm=45fe45f0v9177258950z86342798za201;gcd=13l3l3l3l1;dma=0;epver=2;~oref=https%3A%2F%2Fwww.amnh.org%2Fresearch%2Fresearch-library

199 ms

main.MWNkMWZjOGNjMA.js

main.MWNkMWZjOGNjMA.js

58 ms

pixel

pixel

95 ms

getuidnb

getuidnb

139 ms

generic

generic

91 ms

bounce

bounce

37 ms

popup_silent.html

popup_silent.html

16 ms

popup_silent.html

popup_silent.html

15 ms

pixel

pixel

22 ms

pixel

pixel

25 ms

jquery.min.js

jquery.min.js

44 ms

mustache.min.js

mustache.min.js

54 ms

jquery.min.js

jquery.min.js

67 ms

ttd

ttd

47 ms

pixel

pixel

21 ms

pixel

pixel

20 ms

AdX

AdX

41 ms

pixel

pixel

52 ms

src=13198245;type=track0;cat=ameri0;qty=1;cost=0;u1=;u16=;dc_lat=;dc_rdid=;tag_for_child_directed_treatment=;npa=;gdpr=$%7BGDPR%7D;gdpr_consent=$%7BGDPR_CONSENT_755%7D;ord=orderID

src=13198245;type=track0;cat=ameri0;qty=1;cost=0;u1=;u16=;dc_lat=;dc_rdid=;tag_for_child_directed_treatment=;npa=;gdpr=$%7BGDPR%7D;gdpr_consent=$%7BGDPR_CONSENT_755%7D;ord=orderID

120 ms

src=9432320;type=visit;cat=amnh-0;ord=1;num=4386012720014;npa=0;auiddc=*;pscdl=noapi;frm=0;gtm=45fe45f0v9177258950z86342798za201;gcd=13l3l3l3l1;dma=0;epver=2;~oref=https%3A%2F%2Fwww.amnh.org%2Fresearch%2Fresearch-library

src=9432320;type=visit;cat=amnh-0;ord=1;num=4386012720014;npa=0;auiddc=*;pscdl=noapi;frm=0;gtm=45fe45f0v9177258950z86342798za201;gcd=13l3l3l3l1;dma=0;epver=2;~oref=https%3A%2F%2Fwww.amnh.org%2Fresearch%2Fresearch-library

159 ms

getuam

getuam

54 ms

getuam

getuam

60 ms

pixel

pixel

100 ms

integration

integration

93 ms

integration

integration

83 ms

integration

integration

88 ms

spp.pl

spp.pl

20 ms

spp.pl

spp.pl

13 ms

src=11498468;type=invmedia;cat=amnh_0;dc_lat=;dc_rdid=;tag_for_child_directed_treatment=;tfua=;npa=;gdpr=0;gdpr_consent=;ord=1

src=11498468;type=invmedia;cat=amnh_0;dc_lat=;dc_rdid=;tag_for_child_directed_treatment=;tfua=;npa=;gdpr=0;gdpr_consent=;ord=1

63 ms

Accessibility Review

library.amnh.org accessibility score

79

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Image elements do not have [alt] attributes

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

library.amnh.org best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

library.amnh.org SEO score

92

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Library.amnh.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Library.amnh.org main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

library.amnh.org

Open Graph data is detected on the main page of Library AMNH. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: